【Trademark Q&A : Japan】Q5. What is the function of the registration of a trademark?

A: The registered trademark mainly has the following four functions.
(1) “Other product identification function” A function to distinguish one’s goods from others’ goods
(2) “Source Display Function” A function that indicates that goods with the same trademark are always distributed from a certain source.
(3) “Quality Assurance Function” A function that indicates that goods with the same trademark have the same quality.
(4) “Advertising Function” A function that differentiates one’s own product from another’s product using a trademark and motivates consumers to purchase one’s own product.